Diameter for Bore in Shell End Mill 1". Diameter Range of Shell End Mill 2-1/4 to 2-3/4". Hardened and ground. DRAWBAR 7/16-20. For Bridgeport type mills.
This indexable insert holder is a game-changer! As a result of using this product I found that my cutting process improved and my precision increased with each use .The holder is incredibly sturdy and durable, making it a valuable addition to my industrial and scientific tool collection. The only downside is the price, but it's well worth the investment..
The quality of the product looked really good, it was within tolerance when testing the part. One thing I didn't like was that I wanted what was pictured with the wide stud. This forced me to rework a new one to continue production. So don't post back to "get it right".